As an update, I just received my T3i back from the Canon USA Factory Service Center. As I suspected the SD memory cards were fine. Service details stated that the SD circuit board was defective and malfunctioning; and was unreliably recognizing any...
The Canon Service Dept seems satisfied that I have conducted all the diagnostics on this problem and have recommended sending out the camera for warranty repair. Thanks again for your help.
I'm not sure where "somehere you trust" is located (?). All I can tell you is that the exact same new "branded" Lexar Pro card was formatted and used in my T3i last week (and still has over 200 images shot with the T3i on it) and now reads "No Card...
Mine is a Lexar 32GB card that worked initially in my T3i and now reads "No Card In Camera". The card still reads fine, however, if I put it in other cameras (both Canon and Nikon) and also reads perfectly fine on my computer. The problem doesn't s...
You must be kidding. A brand-new Canon T3i can't recognize "newer" SD cards? I stuck the same SD card into an 8-year-old Nikon D90 and it recognized and read the same card perfectly. If Canon cameras are this squirrely, I'm going back to Nikon.
